Diagnostic trouble code P0382 on Audi vehicles — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does P0382 mean?
P0382 indicates: Glow Plug/Heater Circuit 'B'.
This relates to the Ignition / misfire system.
Common causes of P0382
high power consumption detected in glow plug circuit
high resistance in glow plug circuit causing J179 to stop actuation
What to check (live data)
glow plug circuit resistance
glow plug power consumption
Parts often involved in P0382
ceramic glow plug
ceramic heating core
terminal stud
conductive ceramic heating element
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for P0382 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
P0382 is a diagnostic trouble code: Glow Plug/Heater Circuit 'B'.
What are the common causes of P0382 on an Audi?
Common causes include: high power consumption detected in glow plug circuit, high resistance in glow plug circuit causing J179 to stop actuation. The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving an Audi with P0382?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix P0382 on an Audi?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for P0382 on your specific Audi.